Ring Terminals

A ring terminal is a short metal tube with flat washer type ring attached. The tube or barrel end of the crimp is a hollow tube where the stranded wire is inserted and crimped. The contact or connection end is a flat ring with a central hole which connects to a stud or bolt. Ring terminals are insulated or non-insulated.


What does it do?


An electrical crimp is a solderless electrical connection. Ring terminals are used to connect wiring to screws and studs.


Where are they used?



  • Electrical panels 

  • Terminal blocks

  • Wiring harnesses


Types of Ring Terminal


Crimp terminals are available in a wide variety of ring sizes and wire sizes. The CSA (cross sectional area) or AWG (American wire gauge) of the stranded wire is the most critical. The size of the stranded wire must be adequately matched to meet the amperage. The size of the ring is matched to the bolt or stud size, usually in a metric measurement.


Insulated Terminals


DIN 46237 colour coding is the most popular type of crimp terminal. Colour coding is used to denote a wire size:



  • Red 0.5 mm² to 1.5 mm

  • Yellow 2.5 mm² to 6 mm

  • Blue 1.5 mm² to 2.5 mm


Other colours are available.


Non-insulated


Non-insulated terminals are bigger terminals. Non-insulated terminals connect to bigger studs and bolts. Non-insulated ring terminals have the capacity to except larger stranded wire. More specialised tooling is required for these heavy-duty terminals.


...
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Description Price Series Series Number Insulation Insulation Material Inner Ring Diameter Outer Ring Diameter Maximum Wire Size mm² Minimum Wire Size mm² Maximum Wire Size AWG Minimum Wire Size AWG Stud Size Colour Contact Material Contact Plating
RS Stock No. 208-2622
BrandRS PRO
£0.058
Each (In a Pack of 100)
Units
- - Uninsulated - 4.3mm 8mm 2.5mm² 1.5mm² 14AWG 16AWG M4 - Copper Tin
RS Stock No. 241-4675
BrandRS PRO
£1.45
Each (In a Pack of 4)
Units
CT - Uninsulated - 12.7mm - 120mm² 120mm² - - M12 - Copper Tin
RS Stock No. 613-9429
BrandRS PRO
£0.316
Each (In a Pack of 100)
Units
- - Insulated Vinyl 13mm 19.2mm 6mm² 4mm² 10AWG 12AWG M12 Yellow Copper Tin
RS Stock No. 534-597
BrandRS PRO
£0.053
Each (In a Pack of 100)
Units
- - Insulated PVC 3.7mm 6.6mm 2.5mm² 1.5mm² 14AWG 16AWG M3.5 Blue Copper Tin
RS Stock No. 534-597A
BrandRS PRO
£0.028
Each (In a Pack of 1000)
Units
- - Insulated PVC 3.7mm 6.6mm 2.5mm² 1.5mm² 14AWG 16AWG M3.5 Blue Copper Tin
RS Stock No. 267-3593
BrandRS PRO
£0.116
Each (In a Pack of 100)
Units
- - Insulated Nylon 6.4mm 11.6mm 1.5mm² 0.5mm² 16AWG 22AWG M6 (1/4) Red Copper -
RS Stock No. 241-4647
BrandRS PRO
£2.238
Each (In a Pack of 10)
Units
- - Uninsulated - 10.3mm - 95mm² - - - M10 - Copper Tin
RS Stock No. 267-3616
BrandRS PRO
£0.113
Each (In a Pack of 100)
Units
- - Insulated Nylon 5.3mm 8mm 1.5mm² 0.5mm² 16AWG 22AWG M5 (#10) Red Copper -
RS Stock No. 613-9457
BrandRS PRO
£0.179
Each (In a Pack of 100)
Units
- - Insulated Vinyl 10.5mm 15mm 6mm² 4mm² 10AWG 12AWG M10 Yellow Copper Tin
RS Stock No. 613-9378
BrandRS PRO
£0.142
Each (In a Pack of 100)
Units
- - Insulated Vinyl 3.2mm 7.2mm 6mm² 4mm² 10AWG 12AWG M4 Yellow Copper Tin
RS Stock No. 841-7639
BrandRS PRO
£0.413
Each (In a Pack of 50)
Units
- - Uninsulated - 10.3mm 17mm 35mm² 35mm² - - 10mm - Copper Tin
RS Stock No. 239-4111
BrandRS PRO
£0.104
Each (In a Pack of 100)
Units
- - Insulated Nylon 3.2mm 5mm 0.5mm² 0.2mm² 22AWG 26AWG M3 Yellow Copper Tin
RS Stock No. 613-9334
BrandRS PRO
£0.10
Each (In a Pack of 100)
Units
- - Insulated Vinyl 3.2mm 7.2mm 6mm² 4mm² 10AWG 12AWG M3 Yellow Copper Tin
RS Stock No. 267-3650
BrandRS PRO
£0.107
Each (In a Pack of 100)
Units
- - Insulated Nylon 3.2mm 5.5mm 1.5mm² 0.5mm² 16AWG 22AWG M3 (#4) Red Copper -
RS Stock No. 613-9255
BrandRS PRO
£9.28
1 Pack of 100
Pack(s)
- - Insulated Vinyl 6.4mm 12mm 1.5mm² 0.5mm² 16AWG 22AWG M6 Red Copper Tin
RS Stock No. 841-7617
BrandRS PRO
£0.147
Each (In a Pack of 100)
Units
- - Uninsulated - 6.5mm 11mm 16mm² - - - 6mm - Copper Tin
RS Stock No. 208-2593
BrandRS PRO
£0.053
Each (In a Pack of 100)
Units
- - Uninsulated - 6.4mm 11.6mm 2.5mm² 1.5mm² 14AWG 16AWG M6 - Copper Tin
RS Stock No. 241-4653
BrandRS PRO
£3.238
Each (In a Pack of 4)
Units
- - Uninsulated - 10mm - 120mm² - - - M10 - Copper Tin
RS Stock No. 267-3745
BrandRS PRO
£0.08
Each (In a Pack of 100)
Units
- - Insulated Nylon 5.3mm 9.5mm 2.5mm² 1.5mm² 14AWG 16AWG M5 (#10) Blue Copper -
RS Stock No. 613-9609
BrandRS PRO
£0.08
Each (In a Pack of 100)
Units
- - Insulated Vinyl 3.2mm 6.6mm 2.5mm² 1.5mm² 14AWG 16AWG M3 Blue Copper Tin
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